William a



(No Model.)

W. A. PRESTGN.

- GATE.

VUNITED STAiins ljirrnrrr OFFICE.

VILLIAM A. PRESTON, OF FORT BRANCH, INDIANA.

GATE.

SPECIFICATION forming part of Letters Patent; No. 322,852, dated July21, 1885.

(No model.)

To all whom, it may concern,.-

Be it known that I, WILLIAM A. PRESTON, a citizen of the United States,residing at Fort Branch, in thecounty of Gibson and State of Indiana,have invented certain new and useful Improvements in Gates, of which thefollowing is a specification, reference being had therein to theaccompanying drawings.

My invention relates to certain improvements in gates, and is designedto provide a gate that shall easily be opened or shut, es pecially bypersons on horseback or in can riages, obviating the necessity ofgetting out to open the gate.77 Furthermore, the device is durable andsimple.

'The annexed drawings, referred to in describing the construction andoperation of the gate, show, in-

Figure 1,a perspective View of the gate,vvith the rack-bar casingremoved and shown separatel y; Fig. 2, a perspective View of the rackbarand rope or cord attached, and Fig. 3 a section through the large orgate-operating pulley.

The gate A has a main supporting-post, B, which is connected to a shortpost, C, by means of a bar or rail, D, supported also by a post, E, towhich it is connected.

The gate is properly braced, and has two of its rails extended, as shownat F, the said extended rails operating above and below the bar D tosupport the said gate and to guide it, friction-rollers being providedat H in the ends of the extended rails and at I ou a portion of thesupporting-post. These rollers serve to make the motion of the gate easyand smooth. One of the extended rails also projects from the front ofthe gate at K, and when the gate is shut engages in the recess or slot Lin the abutting post M,placed across the roadway from thesupporting-post B. The post B is recessed at N for the reception of thelarge pulley O, having one end of its shaft journaled in the post andthe other in a guide, P, secured to the outside of the post andprojecting outside the gate. rIhe pulley-shaft has also on it a drum, R,and pinion S, set in a further recess, T, in the post B. Movingvertically on the post,and adapted to engage with the pinion, is arack-bar, U, guided and protected by a casing, V, secured to thepost,and having a projection, W, Which in a measure protects the pulley.The rack-bar has on one side a grooved extension, X, in which the cord Yrests. This cord is connected to each end of the rack-bar, and takesasingle turn around the drum R, causing the said drum, and also thepul1ey,to rotate as the said bar ascends or descends, the rack alsoengaging with the pinion and operating it at the Vsame time. Were thecord alone used the tendency Would be that it would slip on thedruni,and were the rackl used alone itwould have a tendency to Work hard or tocramp, the expense being too great to make them (the racks) as perfectas necessary to prevent the same; hence the two co-operate, the rackpreventing the cord from slipping and the cord preventing the rack fromcramping or Working hard.

Connected both to the front and to the rear of the gate is the cord Z,which takes a turn around the pulley, and when that is turned forces thegate open or shut. Near the top of the standard is a cross-piece, A, tothe ends of which are pivoted the levers B for operating the gate. Theinner end of each lever is connected by a rod to the link on the end ofthe rack-bar.

In large gates, Wire or chain is used in place of cord or rope.

The gate is not necessarily six-bar, as shown, but may be of any heightand Work equally Well.

A notch, C', is provided in the rear upper end of the gate, in whichrests one end of a lockbar, D', the other end being secured to one ofthe levers B near its inner end. The

lock-bar has a guide, E", on the post B, and is operated to lock orunlock by the lever B.

The broad idea or use of a rack-bar operated by extended levers andengaging with a pinion on the gate-operating shaft is not in itselfclaimed.

Having describedthe device, what I claim is- The combination, with asliding gate, of a pinion, drum, and pulley on a shaft journaled in thegate-supporting post, a vertically-moving rack-bar having an extendedIOC) In testimony whereof I aix my signature in presence of twoWitnesses.

WILLIAM A. PRESTON.

groove on one side, and a Cord, wire, or chain connected to its ends,(the rack-bar and cord operating, respectively, on the pinion and drum,)and a cord, Wire, or chain connected to the ends of the gate and passingaround the pulley, substantially as and for the purpose specified.

Witnesses: y

HENRY A. WILLIAMS, S. M. HoLooMB.

